Air-gas apparatus.



S. OLSEN.

AIR GAS APPARATUS.

APPLICATION FILED JULY 24, 1912.

1,080,471. Patented Dec. 2, 1913.

4 SHEBTS-SHEET 1.

S. OLSEN.

AIR GAS APPARATUS.

APPLICATION FILED JULY 24, 1912.

1,080,471 Patented Dec. 2, 1913.

4 SHEETS-SHEET 2.

cuLuMmA PLANOOIIAIM COUWASHINGTON, 04 c4 S. OLSEN.

AIR GAS APPARATUS.

APPLICATION FILED JULY 24, 1912.

Patented Dec. 2, 1913.

4 SHEETS-SHEET 3.

44mm. X

S. OLSEN.

AIR GAS APPARATUS.

APPLICATION rum) JULY 24, 1912.

1,080,471 Patented Dec. 2, 1913.

4 SHBETSSHEET 4.

COLUMBIA PLANODRAPH (JO-,WASIIIN uuuuuuu c.

SVEND OLSEN, 0F HALLE-ON-THE-SAALE, GERMANY.

AIR-GAS APPARATUS.

Specification of Letters Patent.

Application filed July 24, 1912.

Patented Dec. 2, 1913.

Serial No. 711,379.

To all whom it may concern:

Be it known that I, SVEND OLSEN, a sub ject of the King of Denmark, residing at Hordorferstrasse 4, Halle-on-the'Saale, Germany, have invented certain new and useful Improvements in Air-Gas Apparatus, of which the following is a specification.

vVith air-gas apparatus it is necessary that the liquid fuel is supplied at exactly the same rate as gas is produced, and this rate should remain constant, whether the apparatus be working slowly or at full capacity. It is therefore not possible to employ an ordinary pump for the distribution of the fuel, as such pumps will, when running very slowly, say at one stroke per hour, not work reliably, as leakages will be observed in the piston or in the valves, even if these leakages are ever so slight. Therefore bucket elevators and the like have to be employed in place of such pumps. When properly constructed, these will work reliably, but they have the disadvantage, that the fuel in the bucket already raised may evaporate, when the machine is stopped.

The object of the present invention is to provide an air-gas producer, with which the fuel conveyer works in accordance with the gas consumption and the speed at which the blower is running, so that the ratio between the air sucked in and the fuel conveyed will be constant, but the conveyance of the fuel is independent of the speed at which the conveyer is driven, so that the hereinbeforc mentioned disadvantages are avoided. This object is obtained according to the present invention by the fuel conveyer being driven by means of a cam or the like, which is operated by a clockwork with automatic regulation in accordance with the gas consumption, the said cam producing the charging stroke according to its shape and its circumferential velocity, but being ineffective when the discharge stroke commences so that the latter may proceed independently of the speed at which the clockwork runs.

In the accompanying drawings seve 'al constructional. forms of the present invention are illustrated:

Figure 1 is the driving mechanism accord ing to the present invention in combination with a fuel pump; Fig. 2 is a part of the arrangement according to Fig. 1, in combination with a bucket elevator; Fig. 3 is a plan view of Fig. 2; Fig. 4: is the arrangement according to Fig. 1 in combination with a water blower. Fig. 5 is a complete air-gas producer. Fig. 6 is a modified form of the air-gas producer according to Fig. 5.

Like parts are indicated in all figures by the like references.

As shown in Fig. 1 on a shaft 1 which is rotated by a clockwork, for instance by means of a weight 2, a rope 3 and a roller 4:, is keyed a cam 5, the curve of which runs spirally around the shaft and suddenly ceases at 6. On the same shaft 1 is fitted a brake-disk 7 on which rides a brake-shoe 8 under action of a weight. 011 the lever 9 of said brake acts a rope 10, by means of which the brake is controlled.

lVith the cam 5 cooperates a double-armed lever 11 which is fulcrumed on a pin 12 in such a manner, that its shortearm rides on the cam 5 and will therefore receive a rocking motion in correspondence with the shape of the cam. The other end of lever 11 is weighted with a balance weight 13. The longer arm of lever 11 is coupled by means of aconnecting rod 1 1 with the plunger 15 of a pump 16, whichis in communication with a valve box 17 of any suitable design and will suck the fuel in the direction of the arrow 18 and deliver it in the direction of the arrow 19.

In place of the driving mechanism as shown in Fig. 1 the shaft 1 may also be driven by means of gear wheels 20, 21 (see Fig. l) from the shaft 22 of a water-blower air-pump 23 such as is usually used with air-gas producers, which blower is again driven by means of a clockwork loaded with weight 24:. y

In place of the pump 16, shown in Figs. 1, 4-, and 6, the bucket elevator shown in Figs.

2 and 3 may be employed. This elevatorconsists of a bucket arm 25 in form of a tube, which arm is fulcrumed on the same pin 12 as the lever 11, and will therefore positively follow the stroke of the lever 11. At the end of the bucket arm 25 in the direction of the short lever arm 11 is fitted a bucket or spoon 26 which may dip into the liquid c011 tained in the tank 27 The other end of the bucket arm 25 has a spout 28 which opens above a funnel 29.

The arrangements shown in Figs. 1 4

the direction of the arrow 18 into the barrel 16, the same as the bucket 26 will dip in a corresponding manner into the liquid. When the short arm of lever 11 has reached the end of the spiral curve at 6, the cam 5 and lever 11 will be disengaged, and the lever 11 will sink back into its initial posit-ion under action of the weight 13, whereupon the plunger 15 will move on its delivery stroke and convey the fuel liquid in the direction of arrow 19, or the bucket arm 25 will be rocked on the pin 12 and discharge the liquid raised into the funnel 29. It is therefore apparent, that the liquid will be conveyed at a constant velocity although intermittently into the carbureter, independently of the speed at which the suction stroke works. With the air-gas producers shown in Figs. 5 and 6 the same arrangement for supplying fuel as shown in Fig. 1 has been employed. The rope 10 controlling the brake 89, runs over rollers 30 and carries at its other end a counterweight 31 relieving the brake. This weight is arranged above the top 32 of the gas holder 33 and may be raised by the same whereby the clockwork is braked. With this constructional form the lever 11 is made considerably longer and coupled by means of a second connecting rod 34 to the plunger 35 of an air-pump. The pump 36 has a valve gear 37 which will suck the air in the direction of the arrow 38 and deliver it in the direction of the arrow 39. Both the fuel pump 16 and the air-pump 36 communicate by pipes with the carbureter 40, which again will deliver the gas mixture through a pipe 41 t0 the gas holder 33, whence a pipe 43 leads to the points of consumption.

In the constructional form shown in Fig. 6 the arrangement is-the same, only the airpump 43 is made here as suction pump, the plunger 44 of which is linked to lever 11 by means of a connecting rod 45. Corresponding to its opposite action the plunger 44 is arranged above, on the opposite side as the plunger 15 of the fuel pump. By means of a valve 46 combined with the pump 43 the air is sucked through opening 60 in the bottom of the carbureter 40, passes in the direction of the arrow 47 and delivered in the direction of the arrow 48 into the gasholder 33. The arrangement operates in the following manner: In Fig. 5 the clockwork 2, 3, 4 will revolve the shaft 1 and the cam 5 will raise the lever 11, so that the plungers 15 and 35 will suck fuel and air respectively. As soon as the short arm of lever 11 has reached the point 6 of the cam, it leaves the latter and will now be returned into its initial position under action of the weight 13, the plungers 15 and 35 forcing the previously sucked fuel and air respectively into the carbureter 40 and through the same into the gas holder 33, while with the second 0011- structional form as shown in Fig. 6, during the same period, the plunger 44 will suck air through the carbureter 40 into the barrel 43, while its reverse mot-ion will force the gas mixture into the gas-holder. "When the gas consumption is small, the bell 32 of the gas holder will rise, and lift the weight 31 so that the weighted lever 8 will come into effect and brake the clockwork to a great-er or less degree. When the consumption ceases entirely, the clockwork will by such means be completely stopped.

As is evident from the above description,

=the delivery stroke of the two pumps will, according to Fig. 5, proceed independently of the speed at which the clockwork is running and at a constant velocity, and in the same manner the delivery stroke of the piston 15 or the suction stroke of the piston 44 respectively according to the constructional form shown in Fig. 6. In place of the means 14151617, for conveying the fuel a bucket conveyer, corresponding to that shown in Figs. 2 and 3 may be employed as above described, which may be coupled to the lever 11 in the manner hereinbefore described. The consequence is that at each conveying stroke the same quantities of air and fuel will be sucked, whether the clockwork is running fast or slow so that a constant and uniform gas mixture will be produced. The gas produced will pass through the pipe'41 into the gas holder 33 and will there lift the bell 32, and may be sent through pipe 42 to the points of consump tion. According to the quantity of gas consumed, the bell 32 will rise to a greater or less height and thereby produce a more or less powerful brake effect on the clockwork by lifting the weight 31. When the gas consumption is entirely interrupted, the clockwork will be entirely stopped by the brake or indirectly by the position of the bell of the gas holder.

The above described arrangements shall only serve to exemplify constructional forms of the present invention without the invention being limited to the constructional forms shown in the accompanying drawings and specified herewith.

I claim:

1. In an apparatus for generating air-gas, the combination of fluid-supply pumps, a cam, pressure-controlled means to actuate said cam, and means actuated by said cam to operate said fluid-supply pumps.

2. In an apparatus for generating air-gas, the combination of fluid-supply pumps, a cam, pressure-controlled means to actuate said cam, an energy-controlled means actuated by said cam to operate said fluidsupply pumps in one direct-ion and automatically operating the same in the opposite direction, when released by said cam.

3. In an apparatus for generating air-gas,

the combination of an air-pump, a liquid' supply device, a receiver for holding gas under pressure, a cam, means controlled by said receiver to actuate said cam, and means aotuated by said cam to operate said air-pump and liquid-supply device.

4-. In an apparatus for generating air-gas the combination of an air-pump, a fuel pump, a receiver for holding gas under pressure, a cam, means controlled by said receiver to actuate said cam, energy-controlled means actuated by said cam to operate said air-pump and fuel-pump in one direction and automatically operating said air-pump and fuel-pump in the other direction when 15 released by said cam.

In testimony whereof I affix my signature in presence of two witnesses.

SVEND OLSEN. WVitnesses:

HENRY HASPER, VOLDEMAR HAUr'r.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, D. C. 

